Sounds like anxiety. Given what you've been through in the last year, it wouldnt surprise me if you have PND/ PTSD. I think you need to be assessed for it. The amount if stress you've been under will have burnt out your inner resources. I know of a couple who both got severe PND after a traumatic birth. It can happen

The other thing I'd look at is your level of essential vitamins like iron, b12 and zinc. During pregnancy and birth, you transfer most of your nutrients to bub, so they will be depleted anyway. On top of that, the stress will keep depleting you. I started taking zinc everyday after our ds was born to combat both the depletion from pregnancy but also to deal wirh shock and anxiety.

I recommend seeing a naturopath if you have access to one.